Revised and Updated Edition! Two essential language references integrated into one handy volume. More than 60,000 dictionary entries with hundreds of new words and senses added across a variety of fields. More than 13,600 thesaurus entries including extensive synonym and antonym lists. Dictionary and thesaurus entries combined alphabetically. Clear and concise word guidance including abundant usage examples to clarify meanings. Based on the best-selling Merriam-Webster's Collegiate Dictionary.